Neck scarf



FIG. 1 is a front plan view of a neck scarf showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear view, thereof;

FIG. 4 is a bottom plan view, thereof;

FIG. 5 is a left end view thereof; and

FIG. 6 is a right end view. 

The ornamental design for a neck scarf, as shown. 